Cucinotta D, Vanelli M. WHO declares COVID-19 a pandemic. Acta Biomed. 2020;91(1):157–60.

PubMed  PubMed Central  Google Scholar 

National Center for Immunization and Respiratory Diseases (NCIRD), Division of Viral Diseases. CDC COVID-19 Science Briefs. Atlanta (GA): Centers for Disease Control and Prevention (US); 2020–. Science Brief: Omicron (B.1.1.529) Variant. 2021 Dec 2.

Queen D. Another year another variant: COVID 3.0-omicron. Int Wound J. 2022;19(1):5. https://doi.org/10.1111/iwj.13739.

Article  PubMed  Google Scholar 

Abdullah F, Myers J, Basu D, Tintinger G, Ueckermann V, Mathebula M, et al. Decreased severity of disease during the first global omicron variant covid-19 outbreak in a large hospital in tshwane, south africa. Int J Infect Dis. 2022;116:38–42. https://doi.org/10.1016/j.ijid.2021.12.357 (Epub 2021 Dec 28).

CAS  Article  PubMed  Google Scholar 

Colona VL, Vasiliou V, Watt J, Novelli G, Reichardt JKV. Update on human genetic susceptibility to COVID-19: susceptibility to virus and response. Hum Genom. 2021;15(1):57. https://doi.org/10.1186/s40246-021-00356-x.Erratum.In:HumGenomics.2021Sep18;15(1):59.

CAS  Article  Google Scholar 

Dong E, Du H, Gardner L. An interactive web-based dashboard to track COVID-19 in real time. Lancet Infect Dis. 2020; 20(5):533–534. https://doi.org/10.1016/S1473-3099(20)30120-1. Epub 2020 Feb 19. Erratum in: Lancet Infect Dis. 2020; 20(9):e215.

O’Toole Á, Hill V, Pybus OG, Watts A, Bogoch II, Khan K, et al. Tracking the international spread of SARS-CoV-2 lineages B.1.1.7 and B.1.351/501Y-V2 with grinch. Wellcome Open Res. 2021;6:121.

PubMed  PubMed Central  Google Scholar 

CDC. Centers for disease control and prevention. Covid.cdc.gov “Covid.cdc.gov “.2022; Retrieved 19/04, 2022, from https://covid.cdc.gov/covid-data-tracker.

Altarawneh HN, Chemaitelly H, Hasan MR, Ayoub HH, Qassim S, AlMukdad S, et al. Protection against the Omicron variant from previous SARS-CoV-2 Infection. N Engl J Med. 2022. https://doi.org/10.1056/NEJMc2200133.

Article  PubMed  PubMed Central  Google Scholar 

Chaguza C, Coppi A, Earnest R, Ferguson D, Kerantzas N, Warner F, et al. Rapid emergence of SARS-CoV-2 Omicron variant is associated with an infection advantage over Delta in vaccinated persons. Med (N Y). 2022. https://doi.org/10.1016/j.medj.2022.03.010.

Article  Google Scholar 

Pulliam JRC, van Schalkwyk C, Govender N, von Gottberg A, Cohen C, Groome MJ, et al. Increased risk of SARS-CoV-2 reinfection associated with emergence of Omicron in South Africa. Science. 2022. https://doi.org/10.1126/science.abn4947.

Article  PubMed  PubMed Central  Google Scholar 

COVID-19 Reinfection Data (2022). Retrieved 19/04; 2022, from https://coronavirus.health.ny.gov/covid-19-reinfection-data.

Novelli G, Biancolella M, Mehrian-Shai R, Colona VL, Brito AF, Grubaugh ND, et al. COVID-19 one year into the pandemic: from genetics and genomics to therapy, vaccination, and policy. Hum Genom. 2021;15(1):27. https://doi.org/10.1186/s40246-021-00326-3.

CAS  Article  Google Scholar 

Muhsen K, Maimon N, Mizrahi A, Varticovschi B, Bodenheimer O, Gelbshtein U, et al. Effects of BNT162b2 Covid-19 vaccine booster in long-term care facilities in Israel. N Engl J Med. 2022;386(4):399–401. https://doi.org/10.1056/NEJMc2117385 (Epub 2021 Dec 22).

CAS  Article  PubMed  Google Scholar 

Tenforde MW, Self WH, Adams K, Gaglani M, Ginde AA, McNeal T, et al. Influenza and other viruses in the acutely Ill (IVY) network association between mRNA vaccination and COVID-19 hospitalization and disease severity. JAMA. 2021;326(20):2043–54. https://doi.org/10.1001/jama.2021.19499.

CAS  Article  PubMed  Google Scholar 

Tregoning JS, Flight KE, Higham SL, Wang Z, Pierce BF. Progress of the COVID-19 vaccine effort: viruses, vaccines and variants versus efficacy, effectiveness and escape. Nat Rev Immunol. 2021;21(10):626–36. https://doi.org/10.1038/s41577-021-00592-1 (Epub 2021 Aug 9).

CAS  Article  PubMed  PubMed Central  Google Scholar 

Collie S, Champion J, Moultrie H, Bekker LG, Gray G. Effectiveness of BNT162b2 vaccine against omicron variant in South Africa. N Engl J Med. 2022;386(5):494–6. https://doi.org/10.1056/NEJMc2119270 (Epub 2021 Dec 29).

Article  PubMed  Google Scholar 

Davis JT, Chinazzi M, Perra N, Mu K, Pastore Y, Piontti A, et al. Cryptic transmission of SARS-CoV-2 and the first COVID-19 wave. Nature. 2021;600(7887):127–32. https://doi.org/10.1038/s41586-021-04130-w.

CAS  Article  PubMed  PubMed Central  Google Scholar 

Green MS. Did the hesitancy in declaring COVID-19 a pandemic reflect a need to redefine the term? Lancet. 2020;395(10229):1034–5. https://doi.org/10.1016/S0140-6736(20)30630-9 (Epub 2020 Mar 13).

CAS  Article  PubMed  PubMed Central  Google Scholar 

WHO. World Health Organization. Who.int “who.int”. 2022; Retrieved 19/04, 2022, from https://www.who.int/news/item/13-10-2021-who-announces-proposed-members-of-its-scientific-advisory-group-for-the-origins-of-novel-pathogens-(sago).

COVID is here to stay. countries must decide how to adapt. Nature. 2022;601(7892):165. https://doi.org/10.1038/d41586-022-00057-y.

CAS  Article  Google Scholar 

Adam D. Will Omicron end the pandemic? Here’s What Experts Say Nature. 2022;602(7895):20–1. https://doi.org/10.1038/d41586-022-00210-7.

CAS  Article  PubMed  Google Scholar 

Happi CT, Nkengasong JN. Two years of COVID-19 in Africa: lessons for the world. Nature. 2022.

Servick K. Is it time to live with COVID-19? Some scientists warn of ‘endemic delusion’. Science. 2022.

Hale VL, Dennis PM, McBride DS, Nolting JM, Madden C, Huey D, et al. SARS-CoV-2 infection in free-ranging white-tailed deer. Nature. 2022;602(7897):481–6. https://doi.org/10.1038/s41586-021-04353-x (Epub 2021 Dec 23).

CAS  Article  PubMed  Google Scholar 

Kumar A, Narayan RK, Prasoon P, Kumari C, Kaur G, Kumar S, et al. COVID-19 mechanisms in the human body-what we know so far. Front Immunol. 2021;1(12):693938. https://doi.org/10.3389/fimmu.2021.693938.

CAS  Article  Google Scholar 

Chen N, Zhou M, Dong X, Qu J, Gong F, Han Y, et al. Epidemiological and clinical characteristics of 99 cases of 2019 novel coronavirus pneumonia in Wuhan, China: a descriptive study. Lancet. 2020;395(10223):507–13. https://doi.org/10.1016/S0140-6736(20)30211-7 (Epub 2020 Jan 30).

CAS  Article  PubMed  PubMed Central  Google Scholar 

Novelli A, Andreani M, Biancolella M, Liberatoscioli L, Passarelli C, Colona VL, et al. HLA allele frequencies and susceptibility to COVID-19 in a group of 99 Italian patients. HLA. 2020;96(5):610–4. https://doi.org/10.1111/tan.14047 (Epub 2020 Sep 3).

CAS  Article  PubMed  Google Scholar 

Chao JY, Derespina KR, Herold BC, Goldman DL, Aldrich M, Weingarten J, et al. Clinical characteristics and outcomes of hospitalized and critically Ill children and adolescents with coronavirus disease 2019 at a tertiary care medical center in New York City. J Pediatr. 2020;223:14-19.e2. https://doi.org/10.1016/j.jpeds.2020.05.006 (Epub 2020 May 11).

CAS  Article  PubMed  PubMed Central  Google Scholar 

Harrison AG, Lin T, Wang P. Mechanisms of SARS-CoV-2 transmission and pathogenesis. Trends Immunol. 2020;41(12):1100–15. https://doi.org/10.1016/j.it.2020.10.004 (Epub 2020 Oct 14).

CAS  Article  PubMed  PubMed Central  Google Scholar 

Zhang Q, Bastard P, Human Genetic Effort COVID, Cobat A, Casanova JL. Human genetic and immunological determinants of critical COVID-19 pneumonia. Nature. 2022. https://doi.org/10.1038/s41586-022-04447-0.

Article  PubMed  PubMed Central  Google Scholar 

Colona VL, Biancolella M, Novelli A, Novelli G. Will GWAS eventually allow the identification of genomic biomarkers for COVID-19 severity and mortality? J Clin Invest. 2021;131(23):e155011. https://doi.org/10.1172/JCI155011.

CAS  Article  PubMed  Google Scholar 

Huang L, Yao Q, Gu X, Wang Q, Ren L, Wang Y, et al. 1-year outcomes in hospital survivors with COVID-19: a longitudinal cohort study. Lancet. 2021;398(10302):747–58. https://doi.org/10.1016/S0140-6736(21)01755-4.

CAS  Article  PubMed  PubMed Central  Google Scholar 

Sudre CH, Murray B, Varsavsky T, Graham MS, Penfold RS, Bowyer RC, et al. Attributes and predictors of long COVID. Nat Med. 2021; 27(4):626–631. https://doi.org/10.1038/s41591-021-01292-y. Epub 2021 Mar 10. Erratum in: Nat Med. 2021; 27(6):1116.

Visco V, Vitale C, Rispoli A, Izzo C, Virtuoso N, Ferruzzi GJ, et al. Post-COVID-19 Syndrome: Involvement and Interactions between respiratory, cardiovascular and nervous systems. J Clin Med. 2022;11(3):524. https://doi.org/10.3390/jcm11030524.

CAS  Article  PubMed  PubMed Central  Google Scholar 

Fraser E. Persistent pulmonary disease after acute covid-19. BMJ. 2021;21(373):n1565. https://doi.org/10.1136/bmj.n1565.

Article  Google Scholar 

Grist JT, Chen M, Collier GJ, Raman B, Abueid G, McIntyre A, et al. Hyperpolarized 129Xe MRI abnormalities in dyspneic patients 3 months after COVID-19 pneumonia: preliminary results. Radiology. 2021;301(1):E353–60. https://doi.org/10.1148/radiol.2021210033 (Epub 2021 May 25).

Article  PubMed  Google Scholar 

Torres-Castro R, Vasconcello-Castillo L, Alsina-Restoy X, Solis-Navarro L, Burgos F, Puppo H, et al. Respiratory function in patients post-infection by COVID-19: a systematic review and meta-analysis. Pulmonology. 2021;27(4):328–37. https://doi.org/10.1016/j.pulmoe.2020.10.013.

CAS  Article  PubMed  Google Scholar 

Nalbandian A, Sehgal K, Gupta A, Madhavan MV, McGroder C, Stevens JS, et al. Post-acute COVID-19 syndrome. Nat Med. 2021;27(4):601–15. https://doi.org/10.1038/s41591-021-01283-z (Epub 2021 Mar 22).

CAS  Article  PubMed  PubMed Central  Google Scholar 

Burgess LC, Venugopalan L, Badger J, Street T, Alon G, Jarvis JC, et al. Effect of neuromuscular electrical stimulation on the recovery of people with COVID-19 admitted to the intensive care unit: a narrative review. J Rehabil Med. 2021;53(3):jrm00164. https://doi.org/10.2340/16501977-2805.

Article  PubMed  Google Scholar 

Fernández-de-Las-Peñas C, Rodríguez-Jiménez J, Fuensalida-Novo S, Palacios-Ceña M, Gómez-Mayordomo V, Florencio LL, et al. Myalgia as a symptom at hospital admission by severe acute respiratory syndrome coronavirus 2 infection is associated with persistent musculoskeletal pain as long-term post-COVID sequelae: a case-control study. Pain. 2021;162(12):2832–40. https://doi.org/10.1097/j.pain.0000000000002306.

CAS  Article  PubMed  Google Scholar 

Farr E, Wolfe AR, Deshmukh S, Rydberg L, Soriano R, Walter JM, et al. Diaphragm dysfunction in severe COVID-19 as determined by neuromuscular ultrasound. Ann Clin Transl Neurol. 2021;8(8):1745–9. https://doi.org/10.1002/acn3.51416 (Epub 2021 Jul 11).

CAS  Article  PubMed  PubMe